Modern building philosophy and construction practices have changed a lot in just the last 30 years alone. In addition to new technologies and materials giving us more building possibilities, the way we think about our buildings and how we construct them has also changed. Throughout most of human civilization, the only limitation we have traditionally given ourselves when it comes to a building project was cost. In the 21st century, what matters far more than the initial cost of a creating a building is its overall impact; how much material will it take? What kind of material will it use? How will these materials and the presence of this building affect the immediate environment? What kind of energy expenditure will this building have on the current power grid? All these questions and more show a growing concern for what is referred to as “green” or sustainable building. But what exactly is this philosophy? Building Responsibly Sustainable building is an acknowledgement by designerhttp://www.vermeulens.com/RSSRetrieve.aspx?ID=16750&A=Link&ObjectID=6351872&ObjectType=35&O=http%253a%252f%252fwww.vermeulens.com%252fblog%252fwhat-is-sustainable-building